S
M
T
W
T
F
S
26
77°
48°
27
75°
55°
28
63°
50°
29
57°
41°
30
61°
36°
1
59°
36°
2
60°
45°
3
72°
48°
4
79°
49°
5
56°
42°
6
55°
40°
7
59°
42°
8
63°
48°
9
71°
51°
10
69°
47°
11
72°
50°
12
73°
54°
13
75°
54°
14
74°
51°
15
72°
52°
16
75°
58°
17
74°
57°
18
74°
58°
19
75°
56°
20
72°
55°
21
72°
50°
22
67°
49°
23
68°
50°
24
69°
51°
25
69°
51°
26
70°
52°
27
70°
51°
28
71°
57°
29
72°
58°
30
76°
62°
31
72°
59°
1
73°
54°
2
75°
57°
3
76°
61°
4
78°
63°
5
79°
64°
6
77°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Keokuk
Keokuk's May 2026 forecast shows daily high temperatures ranging from 55° to 79°, with overnight lows between 40° and 65°. The average high for May is 71° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Keokuk. See also: June | July | August.
